aya/scripts/gen-bindings

#!/usr/bin/env sh

LIBBPF_DIR=$1
OUTPUT_DIR=$2

if test -z "$LIBBPF_DIR"; then
    echo "error: no libbpf dir provided"
    exit 1
fi

if test -z "$OUTPUT_DIR"; then
    echo "error: no output dir provided"
    exit 1
fi

BPF_TYPES="\
    bpf_cmd \
    bpf_insn \
    bpf_attr \
    bpf_map_type \
    bpf_prog_type \
    bpf_attach_type
    "

BPF_VARS="\
    BPF_PSEUDO_.*
    "

PERF_TYPES="\
    perf_event_attr \
    perf_sw_ids \
    perf_event_sample_format \
    perf_event_mmap_page \
    perf_event_header \
    perf_type_id \
    perf_event_type
    "

PERF_VARS="\
    PERF_FLAG_.* \
    PERF_EVENT_.*
    "

bindgen $LIBBPF_DIR/include/uapi/linux/bpf.h \
    --no-layout-tests \
    --default-enum-style moduleconsts \
    $(for ty in $BPF_TYPES; do
        echo --whitelist-type "$ty"
    done) \
    $(for var in $BPF_VARS; do
        echo --whitelist-var "$var"
    done) \
    > $OUTPUT_DIR/bpf_bindings.rs

bindgen include/perf_wrapper.h \
    --no-layout-tests \
    --default-enum-style moduleconsts \
    $(for ty in $PERF_TYPES; do
        echo --whitelist-type "$ty"
    done) \
    $(for var in $PERF_VARS; do
        echo --whitelist-var "$var"
    done) \
    > $OUTPUT_DIR/perf_bindings.rs